feat: Full petmaster CRM with NestJS API and React frontend

- Client management (CRUD with JSONB custom fields)
- Pet profiles
- Service catalog with per-client pricing
- Booking calendar with recurring appointments
- Invoicing with Stripe integration
- Real-time messaging (WebSocket)
- Self-booking portal
- Staff assignment
- Docker multi-stage builds
- Prisma schema + seed

web/package.json

@@ -0,0 +1,32 @@
+{
+  "name": "petmaster-web",
+  "version": "0.1.0",
+  "private": true,
+  "dependencies": {
+    "react": "^18.3.1",
+    "react-dom": "^18.3.1",
+    "react-router-dom": "^6.26.0",
+    "react-scripts": "5.0.1",
+    "@tanstack/react-query": "^5.60.0",
+    "lucide-react": "^0.441.0",
+    "date-fns": "^4.1.0",
+    "recharts": "^2.13.0"
+  },
+  "devDependencies": {
+    "@types/react": "^18.3.0",
+    "@types/react-dom": "^18.3.0",
+    "@types/react-router-dom": "^5.3.3",
+    "tailwindcss": "^3.4.10",
+    "postcss": "^8.4.40",
+    "autoprefixer": "^10.4.20"
+  },
+  "scripts": {
+    "start": "react-scripts start",
+    "build": "react-scripts build",
+    "test": "react-scripts test"
+  },
+  "browserslist": {
+    "production": [">0.2%", "not dead", "not op_mini all"],
+    "development": ["last 1 chrome version", "last 1 firefox version"]
+  }
+}